Before I play devil's advocate, I have to make two things perfectly clear. I love Jennifer, I think that she is a wonderful actress and from from I've read and seen, she seems like a great person too. Lastly, I believe that there should be a line that the paparazzi must not cross but they do so anyway. I agree that they were partially at fault for Princess Diana's death.
It's hard for me to feel for Jennifer because she chose this life for herself. If she just wanted to be a working actress she could have not audition for Alias and continued doing theatre and small guest spots on television, but she didn't, she wanted more, she wanted success. And with great success comes great fame. Nothing is wrong with that because almost every actor has that goal in mind.
Like every profession, there are downsides, and in this case, there are very few. Celebrities, especially actors, are paid very well for just entertaining the world. Ironically, when they are struggling they have to save every penny (like Jennifer did when she was living in NYC) to barely get by. However, when they become successful they are given FREE lavish gifts like clothes, jewelry etc. Best of all, they are getting rewarded for what they love to do. The downsides are scarifices, like one's personal life take's a toll because if she/he is not being written about in the magazines he/she is spending most of time working on a movie/television set away from their loved ones. Then there's the constant presence of the paparazzi. Compared to the life of an average American with an average salary, Jennifer and celebrities like her, have it pretty easy.
I find it strange that now she is really complaining about the paparazzi. Her approach towards them has changed as well. Before, they actually took photos of her house and yet, she tolerated their presence, instead hiding from them like she is now. She is dating an actor who is well more known than her last boyfriend and he is wanted more by the paparazzi. Everyone saw the kind of press coverage he got with his last relationships (Gwenyth and J. Lo). So, the increased paparazzi presence in her life, should have been expected. Yes, it should been because it is common knowledge that Ben is one of the most photographed men in the world. And Jennifer, chose to date Ben and to become involved in his life. Whether she likes it or not, the paparazzi is apart of his life and it is now apart of hers. Honestly, it is hard for me to feel empathetic for her because this was the decision that she made.
Regarding the paparazzi, the pictures that they provide are fodder and who consumes the fodder, us, the public. Yes, we, the people read magazines like People, Us Weekly, Star or view the many websites that take these candid snapshots so we are just as guilty for viewing these pictures as the paparazzi are for taking them. The only that is going to change is if society stops this cycle but considering how celebrity obsessed we are, that seems very unlikely.